EP0318924A1 - Dispositif de décongélation et de réchaufage pour des produits médicaux - Google Patents

Dispositif de décongélation et de réchaufage pour des produits médicaux Download PDF

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Publication number
EP0318924A1
EP0318924A1 EP88119889A EP88119889A EP0318924A1 EP 0318924 A1 EP0318924 A1 EP 0318924A1 EP 88119889 A EP88119889 A EP 88119889A EP 88119889 A EP88119889 A EP 88119889A EP 0318924 A1 EP0318924 A1 EP 0318924A1
Authority
EP
European Patent Office
Prior art keywords
plastic bags
thawing
temperature control
plastic
pressure member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88119889A
Other languages
German (de)
English (en)
Other versions
EP0318924B1 (fr
Inventor
Volker Barkey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT88119889T priority Critical patent/ATE73678T1/de
Publication of EP0318924A1 publication Critical patent/EP0318924A1/fr
Application granted granted Critical
Publication of EP0318924B1 publication Critical patent/EP0318924B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/44—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media
    • A61M5/445—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for cooling or heating the devices or media the media being heated in the reservoir, e.g. warming bloodbags
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/02—Blood transfusion apparatus
    • A61M1/0281—Apparatus for treatment of blood or blood constituents prior to transfusion, e.g. washing, filtering or thawing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/02—Blood transfusion apparatus
    • A61M1/025—Means for agitating or shaking blood containers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/36—General characteristics of the apparatus related to heating or cooling
    • A61M2205/366—General characteristics of the apparatus related to heating or cooling by liquid heat exchangers

Definitions

  • the invention relates to a thawing and tempering device for medical products, in particular for frozen plasma or blood preserves, with at least two plastic bags containing a tempered medium and to be arranged on both sides of a product to be tempered.
  • Such a device is known from DE-GM 86 06 622 of the applicant.
  • Numerous medical products, especially plasma solutions or blood preserves are stored in freezers or freezers at minus 20 ° C and, if necessary, have to be quickly transferred to e.g. 37 ° C to be heated. Local overheating of the preserve should be avoided, since it can lead to coagulation in the case of blood preserves or undesirable chemical reactions in other preserves.
  • the invention has for its object to provide a device that makes it possible to further increase the temperature control compared to the known device without the risk of overheating and damage to the product.
  • the temperature control medium in the plastic bag is caused to vibrate by the pressure member, so that a rocking movement occurs, which is communicated to the medical product, for example a plasma bag.
  • This also causes the product to move so that the temperature equalization is accelerated from the outside in and across the entire product. A smooth and rapid movement without local overheating is therefore achieved.
  • it is even possible to increase the temperature of the temperature control medium within certain limits compared to the desired end temperature of the product and thus achieve further acceleration, since local overheating on the outer surface of the product can be avoided through the rocking movement and the rapid temperature compensation.
  • the device has two superimposed, essentially congruent, plastic bags filled with the temperature-controlled medium, between which the product to be temperature-controlled is placed after the upper bag has been lifted off, and the pressure element consists of a rotating eccentric that enters between the plastic bags and which alternates acts on the plastic bag.
  • the internal pressure or degree of filling of the plastic bags is preferably reduced during a rocking operation. In this way, the temperature-controlled medium can be set into vibration more easily than is the case with a bulging bag.
  • the pressure member acts on an edge region of the plastic bag or bags.
  • This not only has the advantage that the central area of the plastic bag is available as a contact surface for the medical product, but the desired vibrations can also be achieved more reliably from an edge of the plastic bag.
  • the plastic bags can have a reinforcement that reduces wear and can also be flat, so that it distributes the pressure of the pressure member over a larger area of the plastic bags.
  • Fig. 1 shows a device according to the invention with a box-shaped housing 10, on the top of which a hinged lid 12 is provided.
  • the inside of the housing is through a horizontal plate 14 in an upper Temperature control chamber 16 and a lower hot water chamber 18 divided.
  • the plastic bags consist for example of a soft, temperature-resistant material such as e.g. PVC. Both plastic bags have hose connections 24, 26, 28, 30, which form the inlet and outlet of the two plastic bags 20, 22 in pairs.
  • the hose connections 24, 26, 28, 30 are connected in a manner not shown to a pump 32, which circulates hot water from the hot water chamber 18 through the plastic bag parts 20, 22.
  • the hose connections of the plastic bags are connected in opposite directions, so that for example the hose connections 24, 26, which are shown on the left in FIG. 1, form the inlet for the lower plastic bag and the outlet for the upper plastic bag. This compensates for the effect of a temperature drop occurring in the plastic bags.
  • heating coils 34 are provided which, in conjunction with control electronics 36 arranged on the end face of the housing 10, enable a completely uniform and precise temperature setting of the temperature control medium.
  • the upper plastic bag 22 is lifted up, the plasma bags are placed on the lower plastic bag 20, and the upper plastic bag 22 is again placed on the plasma bags. Due to the soft material of the plastic bags, they close closely to the plasma bag so that rapid heat transfer can take place.
  • the temperature control chamber 16, together with the plate 14, is preferably designed as a watertight collecting trough, in which traces of liquid can be quickly noticed, so that the cause thereof can be eliminated.
  • the upper plastic bag 22 can be suspended from the lid 12 so that it is automatically raised when the lid is opened.
  • a shaft 42 emerges between the hose connections 24, 26 and 28, 30 and is connected to a drive motor (not shown) outside the temperature control chamber 16.
  • the shaft 42 extends into a position between the plastic bags 20, 22, as shown in more detail in FIG. 2.
  • the shaft 42 carries at its end a crank or another eccentric 44, which describes a circular movement when the shaft 42 rotates and alternately compresses the lower and the upper plastic bags 20, 22 in the edge region thereof.
  • the temperature control medium within the bags 20, 22 is shifted to the left in FIG. 2, so that the temperature control medium in the entire plastic bags starts to vibrate, which is communicated to the plasma bag 38. This also causes the plasma to vibrate, so that the mentioned advantage of be particularly rapid temperature distribution within the plasma results.
  • Reinforcements 46, 48 can be provided on the edges of the plastic bags 20, 22 acted upon by the eccentric 44, which reinforcements reduce the wear when the eccentric 44 acts.
  • the eccentric 44 can also have a wear-preventing coating, for example made of polytetrafluoroethylene.
  • the reinforcements 46, 48 can run in strips or in another form over partial areas of the plastic bags 20, 22 and consist of relatively rigid material, so that the pressure exerted is distributed over a larger area of the plastic bags.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • External Artificial Organs (AREA)
EP88119889A 1987-12-04 1988-11-29 Dispositif de décongélation et de réchaufage pour des produits médicaux Expired - Lifetime EP0318924B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88119889T ATE73678T1 (de) 1987-12-04 1988-11-29 Auftau- und temperiervorrichtung fuer medizinische produkte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3741051A DE3741051C1 (de) 1987-12-04 1987-12-04 Auftau- und Temperiervorrichtung fuer medizinische Produkte
DE3741051 1987-12-04

Publications (2)

Publication Number Publication Date
EP0318924A1 true EP0318924A1 (fr) 1989-06-07
EP0318924B1 EP0318924B1 (fr) 1992-03-18

Family

ID=6341842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119889A Expired - Lifetime EP0318924B1 (fr) 1987-12-04 1988-11-29 Dispositif de décongélation et de réchaufage pour des produits médicaux

Country Status (3)

Country Link
EP (1) EP0318924B1 (fr)
AT (1) ATE73678T1 (fr)
DE (2) DE3741051C1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432591A1 (fr) * 1989-12-07 1991-06-19 TRANSMED Medizintechnik GmbH Dispositif de réchauffage et de décongélation
AT1650U1 (de) * 1996-06-26 1997-09-25 Immuno Ag Verfahren und vorrichtung zum ausbringen eines tiefgefrorenen plasmaproduktes
WO2002004052A1 (fr) * 2000-07-07 2002-01-17 Transmed Medizintechnik Gmbh & Co. Kg Dispositif de decongelation et/ou de rechauffage
NL1015794C2 (nl) * 2000-07-25 2002-01-28 Gert Van Riessen Verwarmingsinrichting voor een infusievloeistof in een doseerverpakking.
US6786054B2 (en) 2001-05-22 2004-09-07 Integrated Biosystems, Inc. Systems and methods for freezing, storing and thawing biopharmaceutical material
CN105999444A (zh) * 2016-04-27 2016-10-12 北京诚名扬科技发展有限公司 干式血浆解冻仪
WO2019223828A1 (fr) 2018-05-22 2019-11-28 Barkey Gmbh & Co. Kg Dispositif de thermorégulation et procédé de thermorégulation
US11571699B2 (en) 2018-03-13 2023-02-07 Terumo Kabushiki Kaisha Melting device and melting method

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821299A1 (de) * 1988-06-24 1989-11-09 Litterst Werner Alfons Geregelte und ungeregelte elektrische temperiersysteme fuer behaeltnisse aus glas, kunststoff, metall mit geformten, flexiblen heizkoerper
DE4230774A1 (de) * 1992-09-15 1994-03-17 Wwt Tech Geraetebau Gmbh Vorrichtung zur Handhabung von in deformierbaren Behältnissen gespeicherten Stoffen
DE19548826C2 (de) * 1995-12-27 1999-10-28 Guenther Schmidt Elektrisches Schnellauftaugerät und Verfahren zum raschen Auftauen von gefrorenen Flüssigkeiten
DE19730994A1 (de) * 1997-07-18 1999-02-11 Transmed Medtech Gmbh Vorrichtung zum Auftauen und/oder zum Erwärmen von sich in einem Behältnis befindlichem medizinischen Infusions- oder Transfusionsgut
DE10053132C1 (de) * 2000-10-26 2002-04-11 Reimer Wiepcke Wärmebox
US6748164B1 (en) 2000-10-31 2004-06-08 Photo-Therm, L.P. Plasma thawing system
US7722839B2 (en) 2001-10-11 2010-05-25 Cytotherm, L.P. Apparatus and method for thawing biological materials
US8012416B2 (en) 2005-08-30 2011-09-06 Cytotherm, L.P. Thawing biological material using a sealed liquid bladder
WO2007103917A2 (fr) 2006-03-06 2007-09-13 Integrated Biosystems, Inc. Systèmes et procédés utilisés pour congeler, stocker et décongeler des matières biopharmaceutiques
DE202010004830U1 (de) 2010-04-10 2010-07-29 Pelster, Michael, Dipl.-Ing. Vorrichtung zum Auftauen und/oder Erwärmen von sich in einem Behältnis befindlichen medizinischen Gut
CN102416205A (zh) * 2011-08-02 2012-04-18 董喜春 干式血浆解冻仪
WO2014181158A1 (fr) * 2013-05-07 2014-11-13 Biosafe S.A. Système de mélange d'échantillons biologiques avec des additifs
EP3177258A4 (fr) 2014-08-08 2018-09-12 Fremon Scientific, Inc. Sac intelligent servant à la détection de paramètres physiologiques et/ou physiques de sacs contenant une substance biologique
US10866173B2 (en) 2018-05-07 2020-12-15 Fremon Scientific, Inc. Thawing biological substances

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3518393A (en) * 1967-11-21 1970-06-30 South African Inventions Bloodwarmers
US4473739A (en) * 1980-12-18 1984-09-25 Helmholtz-Institut Fur Biomedizinische Technik Process and apparatus for warming of suspensions or solutions frozen in a flat plastic bag
DE8606622U1 (de) * 1986-03-11 1986-10-30 Barkey, Volker, 4800 Bielefeld Auftau- und Temperiervorrichtung für medizinische Produkte

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3518393A (en) * 1967-11-21 1970-06-30 South African Inventions Bloodwarmers
US4473739A (en) * 1980-12-18 1984-09-25 Helmholtz-Institut Fur Biomedizinische Technik Process and apparatus for warming of suspensions or solutions frozen in a flat plastic bag
DE8606622U1 (de) * 1986-03-11 1986-10-30 Barkey, Volker, 4800 Bielefeld Auftau- und Temperiervorrichtung für medizinische Produkte

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432591A1 (fr) * 1989-12-07 1991-06-19 TRANSMED Medizintechnik GmbH Dispositif de réchauffage et de décongélation
AT1650U1 (de) * 1996-06-26 1997-09-25 Immuno Ag Verfahren und vorrichtung zum ausbringen eines tiefgefrorenen plasmaproduktes
US5829634A (en) * 1996-06-26 1998-11-03 Immuno Aktiengesellschaft Method of discharging a frozen blood product
WO2002004052A1 (fr) * 2000-07-07 2002-01-17 Transmed Medizintechnik Gmbh & Co. Kg Dispositif de decongelation et/ou de rechauffage
US6861624B1 (en) 2000-07-07 2005-03-01 Transmed Medizintechnik Gmbh & Co. Kg Device for defrosting and/or heating up
NL1015794C2 (nl) * 2000-07-25 2002-01-28 Gert Van Riessen Verwarmingsinrichting voor een infusievloeistof in een doseerverpakking.
WO2002013894A1 (fr) * 2000-07-25 2002-02-21 Gert Van Riessen Dispositif de chauffage de solute dans un emballage de distribution
US6786054B2 (en) 2001-05-22 2004-09-07 Integrated Biosystems, Inc. Systems and methods for freezing, storing and thawing biopharmaceutical material
CN105999444A (zh) * 2016-04-27 2016-10-12 北京诚名扬科技发展有限公司 干式血浆解冻仪
CN105999444B (zh) * 2016-04-27 2018-06-29 北京诚名扬科技发展有限公司 干式血浆解冻仪
US11571699B2 (en) 2018-03-13 2023-02-07 Terumo Kabushiki Kaisha Melting device and melting method
WO2019223828A1 (fr) 2018-05-22 2019-11-28 Barkey Gmbh & Co. Kg Dispositif de thermorégulation et procédé de thermorégulation

Also Published As

Publication number Publication date
ATE73678T1 (de) 1992-04-15
EP0318924B1 (fr) 1992-03-18
DE3741051C1 (de) 1989-06-01
DE3869348D1 (fr) 1992-04-23

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